I'll say

Idioms  

1. Absolutely, I strongly agree. For example, Did you enjoy the film?—I'll say. This phrase is generally used alone and for emphasis. [First half of 1900s] For a synonym, see you can say that again.

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Example Sentences

I’ll say one thing for this woman: Her shoes are freaking gorgeous.

From Literature

“I’ll say, ‘Can you order more tofu?’ and it arrives by the time I get back from my bike ride, so it gives me more time for my bike ride,” says Merk, a 27-year-old startup founder in San Francisco.

From The Wall Street Journal

She looks right at me, waiting to see if I’ll say more.

From Literature

“It’s a long story, and it’s not very interesting. I didn’t do it because I loved the song — that’s what I’ll say. But at the end of the day it’s my name and I have to stand by it.”

From Los Angeles Times

That conversation might be a decade away, but I’ll say it now: In L.A. and in Cooperstown, Freeman is a Dodger.

From Los Angeles Times